Your presented position here is amill and replacement theology, not necessarily unchristian in today's world but limiting to the possibilities especially with regard to end time events IMHO. I used to be amill and RT also.
All I attempted to present her is that Mary, Christ and Body of Christ are solid interpretations, among the most solid possible with a book like Revelations. And with Revelations, anything solid is very helpful with the less solid.
Whatever conclusions flow, flow.